CRI (Color Rendering Index) is a quantitative measure (from 0 to 100) of a light source’s ability to accurately reveal the colors of various objects compared to natural light (sunlight).
CRI Scale (0–100)
| CRI Value | Color Rendering Quality | Description |
|---|---|---|
| 90–100 | Excellent | Colors appear natural and vibrant |
| 80–89 | Good | Colors are mostly accurate |
| 70–79 | Fair | Acceptable, but colors may look dull |
| 60–69 | Poor | Color distortion is noticeable |
| Below 60 | Very Poor | Colors are inaccurate or washed out |
Sunlight = CRI 100 (perfect color rendering)
1. True-to-Life Colors
High CRI lighting helps you see objects, skin tones, food, clothes, art, etc., in their true colors.
Essential in tasks requiring color accuracy, such as:
Photography
Graphic design
Makeup application
Clothing stores
Art galleries
2. Better Visual Comfort
Poor CRI lighting can make people or spaces look washed out, dull, or unnatural.
High CRI lighting creates a more pleasant, comfortable, and realistic environment.
3. Improves Productivity
In offices, schools, or workshops, accurate color perception helps reduce eye strain, mistakes, and increases focus.
People often confuse CRI with brightness (lumens), but they’re not the same:
| CRI | Lumens (Brightness) |
|---|---|
| Measures color accuracy | Measures light output |
| Affects how colors appear | Affects how much light you get |
| Location / Task | Recommended CRI |
|---|---|
| Art studios | 90+ |
| Photography/Film | 90+ |
| Makeup rooms | 90+ |
| Retail stores (clothing, food) | 85–95 |
| Kitchens | 85+ |
| Living rooms | 80–90 |
| Warehouses | 70–80 |
How is CRI Measured?
CRI is calculated by comparing how a light source renders 8 standardized colors (R1 to R8).
Advanced CRI ratings (like R9, for deep red tones) are often used in medical and film lighting.
CRI vs Other Color Quality Metrics
| Metric | Measures | Scale |
|---|---|---|
| CRI | Color rendering accuracy (basic 8 colors) | 0–100 |
| R9 | Deep red rendering (important for skin tones) | 0–100 |
| TM-30 | More advanced metric (fidelity + gamut) | 0–100 |
| Feature | High CRI (>90) | Low CRI (<80) |
|---|---|---|
| Color Accuracy | True, vivid, natural colors | Dull, distorted, or unnatural |
| Visual Comfort | Relaxing and pleasant | Fatiguing and visually confusing |
| Best For | Art, photography, homes, retail | Warehouses, parking lots |
| Cost | Slightly higher | Often cheaper |
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We deliver premium-quality LED lighting at the best value. From our own innovations to trusted partner products, every option is built for efficiency and durability.
We understand lighting can feel complex. Our expert and friendly support team is always ready to guide you toward the right solution with confidence.
At Bangla BaTi, we go beyond just lighting—we deliver innovation, reliability, and future-ready solutions tailored to your lifestyle, business, and projects.
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